940

940 is the natural number between 939 and 941. It is even and composite. Its prime factorization is 2^2 × 5 × 47, so its divisors include 1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, and 940.

The sum of its proper divisors is 1076, which makes 940 an abundant number. In decimal form it ends with zero, indicating divisibility by 10 and 20 as well as by 4 and 5 due to its prime factorization. In other bases, 940 is represented as 1110101100 in binary and 0x3AC in hexadecimal. In Roman numerals it is written as CMXL.

In calendar use, 940 CE falls in the early medieval period and is part of the 10th century, a time characterized by regional kingdoms and evolving political structures across Europe and other parts of the world.

Outside pure arithmetic, 940 is commonly encountered as a numerical designation in product models, catalog numbers, and identifiers. As a plain integer, it remains a convenient reference point in discussions of divisors, parity, and numeral representations.